Wider tower cases












1















Desktop computers have been in tower cases for a long time; in some cases since the eighties, per When did the tower form factor appear and when did it become popular?



The form of tower cases has been pretty consistent; setting aside huge machines like the Xerox Alto and SGI Onyx, the standard form is just wide enough to accommodate the width of a disk drive (5.25" floppy, hard disk, CD or DVD), then high enough to accommodate several drives stacked one atop another, and deep enough to put the mainboard behind the drives.



My intuition for what it's worth is that a more obvious design would be a little wider, so as to have room to put the mainboard beside the drives, and not need as much depth. Okay, obviousness and aesthetics are subjective, so I will say no more about that aspect of it.



But have any computers used that variant design, with the tower case somewhat wider than the disk drives and the mainboard beside the drives? And if not, is there an objective, practical reason why not?










share|improve this question























  • Why conform? google.com/…

    – spikey_richie
    Jan 16 at 11:25











  • The X68000 doesn't quite do what you ask: the drives are 3.5" and, importantly, mounted sideways, allowing the case to take a distinctive two-segment moulding: vintagecpu.files.wordpress.com/2011/11/x68kexpert.jpg . But it's not too far off, and is definitely the result of somebody thinking about aesthetics.

    – Tommy
    Jan 16 at 12:29






  • 2





    Isn't/wasn't a tower case often just a desktop case with the drive cage rotated? There's your practical reason. Even if there are parts of the case that are orientation-specific, I would guess that by adopting similar layouts you can reuse parts of the chassis.

    – another-dave
    Jan 16 at 12:39






  • 2





    As @spikey_richie says - except it doesn't need to be insane ... just (double) wide. Housings like that are around since the start of time ... or at least since the PC left 19" :))

    – Raffzahn
    Jan 16 at 13:11






  • 2





    @Raffzahn the wider of those cases look very NeXTCube. Which might even be a valid answer to this question?

    – Tommy
    Jan 16 at 13:39
















1















Desktop computers have been in tower cases for a long time; in some cases since the eighties, per When did the tower form factor appear and when did it become popular?



The form of tower cases has been pretty consistent; setting aside huge machines like the Xerox Alto and SGI Onyx, the standard form is just wide enough to accommodate the width of a disk drive (5.25" floppy, hard disk, CD or DVD), then high enough to accommodate several drives stacked one atop another, and deep enough to put the mainboard behind the drives.



My intuition for what it's worth is that a more obvious design would be a little wider, so as to have room to put the mainboard beside the drives, and not need as much depth. Okay, obviousness and aesthetics are subjective, so I will say no more about that aspect of it.



But have any computers used that variant design, with the tower case somewhat wider than the disk drives and the mainboard beside the drives? And if not, is there an objective, practical reason why not?










share|improve this question























  • Why conform? google.com/…

    – spikey_richie
    Jan 16 at 11:25











  • The X68000 doesn't quite do what you ask: the drives are 3.5" and, importantly, mounted sideways, allowing the case to take a distinctive two-segment moulding: vintagecpu.files.wordpress.com/2011/11/x68kexpert.jpg . But it's not too far off, and is definitely the result of somebody thinking about aesthetics.

    – Tommy
    Jan 16 at 12:29






  • 2





    Isn't/wasn't a tower case often just a desktop case with the drive cage rotated? There's your practical reason. Even if there are parts of the case that are orientation-specific, I would guess that by adopting similar layouts you can reuse parts of the chassis.

    – another-dave
    Jan 16 at 12:39






  • 2





    As @spikey_richie says - except it doesn't need to be insane ... just (double) wide. Housings like that are around since the start of time ... or at least since the PC left 19" :))

    – Raffzahn
    Jan 16 at 13:11






  • 2





    @Raffzahn the wider of those cases look very NeXTCube. Which might even be a valid answer to this question?

    – Tommy
    Jan 16 at 13:39














1












1








1








Desktop computers have been in tower cases for a long time; in some cases since the eighties, per When did the tower form factor appear and when did it become popular?



The form of tower cases has been pretty consistent; setting aside huge machines like the Xerox Alto and SGI Onyx, the standard form is just wide enough to accommodate the width of a disk drive (5.25" floppy, hard disk, CD or DVD), then high enough to accommodate several drives stacked one atop another, and deep enough to put the mainboard behind the drives.



My intuition for what it's worth is that a more obvious design would be a little wider, so as to have room to put the mainboard beside the drives, and not need as much depth. Okay, obviousness and aesthetics are subjective, so I will say no more about that aspect of it.



But have any computers used that variant design, with the tower case somewhat wider than the disk drives and the mainboard beside the drives? And if not, is there an objective, practical reason why not?










share|improve this question














Desktop computers have been in tower cases for a long time; in some cases since the eighties, per When did the tower form factor appear and when did it become popular?



The form of tower cases has been pretty consistent; setting aside huge machines like the Xerox Alto and SGI Onyx, the standard form is just wide enough to accommodate the width of a disk drive (5.25" floppy, hard disk, CD or DVD), then high enough to accommodate several drives stacked one atop another, and deep enough to put the mainboard behind the drives.



My intuition for what it's worth is that a more obvious design would be a little wider, so as to have room to put the mainboard beside the drives, and not need as much depth. Okay, obviousness and aesthetics are subjective, so I will say no more about that aspect of it.



But have any computers used that variant design, with the tower case somewhat wider than the disk drives and the mainboard beside the drives? And if not, is there an objective, practical reason why not?







history hardware case






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 16 at 10:41









rwallacerwallace

9,016445131




9,016445131













  • Why conform? google.com/…

    – spikey_richie
    Jan 16 at 11:25











  • The X68000 doesn't quite do what you ask: the drives are 3.5" and, importantly, mounted sideways, allowing the case to take a distinctive two-segment moulding: vintagecpu.files.wordpress.com/2011/11/x68kexpert.jpg . But it's not too far off, and is definitely the result of somebody thinking about aesthetics.

    – Tommy
    Jan 16 at 12:29






  • 2





    Isn't/wasn't a tower case often just a desktop case with the drive cage rotated? There's your practical reason. Even if there are parts of the case that are orientation-specific, I would guess that by adopting similar layouts you can reuse parts of the chassis.

    – another-dave
    Jan 16 at 12:39






  • 2





    As @spikey_richie says - except it doesn't need to be insane ... just (double) wide. Housings like that are around since the start of time ... or at least since the PC left 19" :))

    – Raffzahn
    Jan 16 at 13:11






  • 2





    @Raffzahn the wider of those cases look very NeXTCube. Which might even be a valid answer to this question?

    – Tommy
    Jan 16 at 13:39



















  • Why conform? google.com/…

    – spikey_richie
    Jan 16 at 11:25











  • The X68000 doesn't quite do what you ask: the drives are 3.5" and, importantly, mounted sideways, allowing the case to take a distinctive two-segment moulding: vintagecpu.files.wordpress.com/2011/11/x68kexpert.jpg . But it's not too far off, and is definitely the result of somebody thinking about aesthetics.

    – Tommy
    Jan 16 at 12:29






  • 2





    Isn't/wasn't a tower case often just a desktop case with the drive cage rotated? There's your practical reason. Even if there are parts of the case that are orientation-specific, I would guess that by adopting similar layouts you can reuse parts of the chassis.

    – another-dave
    Jan 16 at 12:39






  • 2





    As @spikey_richie says - except it doesn't need to be insane ... just (double) wide. Housings like that are around since the start of time ... or at least since the PC left 19" :))

    – Raffzahn
    Jan 16 at 13:11






  • 2





    @Raffzahn the wider of those cases look very NeXTCube. Which might even be a valid answer to this question?

    – Tommy
    Jan 16 at 13:39

















Why conform? google.com/…

– spikey_richie
Jan 16 at 11:25





Why conform? google.com/…

– spikey_richie
Jan 16 at 11:25













The X68000 doesn't quite do what you ask: the drives are 3.5" and, importantly, mounted sideways, allowing the case to take a distinctive two-segment moulding: vintagecpu.files.wordpress.com/2011/11/x68kexpert.jpg . But it's not too far off, and is definitely the result of somebody thinking about aesthetics.

– Tommy
Jan 16 at 12:29





The X68000 doesn't quite do what you ask: the drives are 3.5" and, importantly, mounted sideways, allowing the case to take a distinctive two-segment moulding: vintagecpu.files.wordpress.com/2011/11/x68kexpert.jpg . But it's not too far off, and is definitely the result of somebody thinking about aesthetics.

– Tommy
Jan 16 at 12:29




2




2





Isn't/wasn't a tower case often just a desktop case with the drive cage rotated? There's your practical reason. Even if there are parts of the case that are orientation-specific, I would guess that by adopting similar layouts you can reuse parts of the chassis.

– another-dave
Jan 16 at 12:39





Isn't/wasn't a tower case often just a desktop case with the drive cage rotated? There's your practical reason. Even if there are parts of the case that are orientation-specific, I would guess that by adopting similar layouts you can reuse parts of the chassis.

– another-dave
Jan 16 at 12:39




2




2





As @spikey_richie says - except it doesn't need to be insane ... just (double) wide. Housings like that are around since the start of time ... or at least since the PC left 19" :))

– Raffzahn
Jan 16 at 13:11





As @spikey_richie says - except it doesn't need to be insane ... just (double) wide. Housings like that are around since the start of time ... or at least since the PC left 19" :))

– Raffzahn
Jan 16 at 13:11




2




2





@Raffzahn the wider of those cases look very NeXTCube. Which might even be a valid answer to this question?

– Tommy
Jan 16 at 13:39





@Raffzahn the wider of those cases look very NeXTCube. Which might even be a valid answer to this question?

– Tommy
Jan 16 at 13:39










1 Answer
1






active

oldest

votes


















8














Early PC towers often used such a design, if only because they were basically desktop PCs on their side. Some systems even had a rotatable drive bay (a bay containing two full-height 5.25” emplacements is as high as it is wide).



There were some systems specifically designed along the lines you mention; Apple’s Quadra 950 and PowerMac 8100 spring to mind, and in less common systems, Digital’s Personal Workstations are nice specimens.



In the PC space though, the design wasn’t all that popular, at least when using standard components, because of motherboard constraints, and of target markets. Regarding the former, Baby AT systems did commonly put the hard drives and 3.5” floppy drive alongside the motherboard; but the number and size of expansion cards limited the ability to reduce the case’s size, and giving users access to memory slots etc. meant either having to develop specific “easy access” drive mounts, or leaving the case large enough to allow hands to fit without getting too badly torn to shreds. See this photo for a typical example of a baby AT clone. (Baby AT motherboards were really long too, so reducing the depth wasn’t possible anyway.) Regarding the latter, in the nineties most people wanted desktop systems, and towers were sold based on their enhanced expansion possibilities; reducing their size wasn’t part of the specification, on the contrary — the bigger the tower, the more serious the system, in many people’s minds (and on magazine covers).



ATX and related standards didn’t improve things much in terms of size reduction; the main consideration in the design was airflow. The same was true of BTX. The standards call for a fair amount of clearance above the motherboard, especially around the CPU — bear in mind that PCs in the early 2000s used slotted CPUs, not socketed; and while the Pentium 4 moved back to sockets it brought with it huge cooling requirements — so that combined with the expansion card requirements and easy access to memory means that designing a system with the motherboard behind everything is rather complex. (Not that it can’t be done, some small systems do exist, but they typically rely on specific equipment — low-profile CPU coolers, low-profile expansion cards if any, no 5.25” devices...)



The decline in popularity of 5.25” devices means that they are no longer a design constraint; but general purpose side-by-side designs still tend to follow the “humongous tower” approach. See Lian Li’s PC-011 for one example of a system with no 5.25” bays, or their PC-D600 and PC-08 for two-compartment designs with 5.25” bays (this type of case has been around for decades).



In summary, yes there were some towers with motherboards on a back plane behind everything else, but they came with constraints:




  • complicated access to devices on the motherboard;

  • limited airflow;

  • limited expansion capabilities (which ended up being rather ironic for a tower).






share|improve this answer





















  • 1





    Further, if you look at older full-size ATX boards (the ones that require the full footprint of a mid-tower, they do in fact only fit with part of the motherboard behind the drive cages. They just tend to be designed with everything in that corner of the motherboard being a low enough profile passive components to fit within the clearance limits outlined in the ATX specs.

    – mnem
    Jan 16 at 14:52













  • Nit: It was Pentium 3 Coppermine that moved back to sockets, before Pentium 4.

    – Jonathan
    Jan 20 at 15:15











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1 Answer
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1 Answer
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active

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active

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votes









8














Early PC towers often used such a design, if only because they were basically desktop PCs on their side. Some systems even had a rotatable drive bay (a bay containing two full-height 5.25” emplacements is as high as it is wide).



There were some systems specifically designed along the lines you mention; Apple’s Quadra 950 and PowerMac 8100 spring to mind, and in less common systems, Digital’s Personal Workstations are nice specimens.



In the PC space though, the design wasn’t all that popular, at least when using standard components, because of motherboard constraints, and of target markets. Regarding the former, Baby AT systems did commonly put the hard drives and 3.5” floppy drive alongside the motherboard; but the number and size of expansion cards limited the ability to reduce the case’s size, and giving users access to memory slots etc. meant either having to develop specific “easy access” drive mounts, or leaving the case large enough to allow hands to fit without getting too badly torn to shreds. See this photo for a typical example of a baby AT clone. (Baby AT motherboards were really long too, so reducing the depth wasn’t possible anyway.) Regarding the latter, in the nineties most people wanted desktop systems, and towers were sold based on their enhanced expansion possibilities; reducing their size wasn’t part of the specification, on the contrary — the bigger the tower, the more serious the system, in many people’s minds (and on magazine covers).



ATX and related standards didn’t improve things much in terms of size reduction; the main consideration in the design was airflow. The same was true of BTX. The standards call for a fair amount of clearance above the motherboard, especially around the CPU — bear in mind that PCs in the early 2000s used slotted CPUs, not socketed; and while the Pentium 4 moved back to sockets it brought with it huge cooling requirements — so that combined with the expansion card requirements and easy access to memory means that designing a system with the motherboard behind everything is rather complex. (Not that it can’t be done, some small systems do exist, but they typically rely on specific equipment — low-profile CPU coolers, low-profile expansion cards if any, no 5.25” devices...)



The decline in popularity of 5.25” devices means that they are no longer a design constraint; but general purpose side-by-side designs still tend to follow the “humongous tower” approach. See Lian Li’s PC-011 for one example of a system with no 5.25” bays, or their PC-D600 and PC-08 for two-compartment designs with 5.25” bays (this type of case has been around for decades).



In summary, yes there were some towers with motherboards on a back plane behind everything else, but they came with constraints:




  • complicated access to devices on the motherboard;

  • limited airflow;

  • limited expansion capabilities (which ended up being rather ironic for a tower).






share|improve this answer





















  • 1





    Further, if you look at older full-size ATX boards (the ones that require the full footprint of a mid-tower, they do in fact only fit with part of the motherboard behind the drive cages. They just tend to be designed with everything in that corner of the motherboard being a low enough profile passive components to fit within the clearance limits outlined in the ATX specs.

    – mnem
    Jan 16 at 14:52













  • Nit: It was Pentium 3 Coppermine that moved back to sockets, before Pentium 4.

    – Jonathan
    Jan 20 at 15:15
















8














Early PC towers often used such a design, if only because they were basically desktop PCs on their side. Some systems even had a rotatable drive bay (a bay containing two full-height 5.25” emplacements is as high as it is wide).



There were some systems specifically designed along the lines you mention; Apple’s Quadra 950 and PowerMac 8100 spring to mind, and in less common systems, Digital’s Personal Workstations are nice specimens.



In the PC space though, the design wasn’t all that popular, at least when using standard components, because of motherboard constraints, and of target markets. Regarding the former, Baby AT systems did commonly put the hard drives and 3.5” floppy drive alongside the motherboard; but the number and size of expansion cards limited the ability to reduce the case’s size, and giving users access to memory slots etc. meant either having to develop specific “easy access” drive mounts, or leaving the case large enough to allow hands to fit without getting too badly torn to shreds. See this photo for a typical example of a baby AT clone. (Baby AT motherboards were really long too, so reducing the depth wasn’t possible anyway.) Regarding the latter, in the nineties most people wanted desktop systems, and towers were sold based on their enhanced expansion possibilities; reducing their size wasn’t part of the specification, on the contrary — the bigger the tower, the more serious the system, in many people’s minds (and on magazine covers).



ATX and related standards didn’t improve things much in terms of size reduction; the main consideration in the design was airflow. The same was true of BTX. The standards call for a fair amount of clearance above the motherboard, especially around the CPU — bear in mind that PCs in the early 2000s used slotted CPUs, not socketed; and while the Pentium 4 moved back to sockets it brought with it huge cooling requirements — so that combined with the expansion card requirements and easy access to memory means that designing a system with the motherboard behind everything is rather complex. (Not that it can’t be done, some small systems do exist, but they typically rely on specific equipment — low-profile CPU coolers, low-profile expansion cards if any, no 5.25” devices...)



The decline in popularity of 5.25” devices means that they are no longer a design constraint; but general purpose side-by-side designs still tend to follow the “humongous tower” approach. See Lian Li’s PC-011 for one example of a system with no 5.25” bays, or their PC-D600 and PC-08 for two-compartment designs with 5.25” bays (this type of case has been around for decades).



In summary, yes there were some towers with motherboards on a back plane behind everything else, but they came with constraints:




  • complicated access to devices on the motherboard;

  • limited airflow;

  • limited expansion capabilities (which ended up being rather ironic for a tower).






share|improve this answer





















  • 1





    Further, if you look at older full-size ATX boards (the ones that require the full footprint of a mid-tower, they do in fact only fit with part of the motherboard behind the drive cages. They just tend to be designed with everything in that corner of the motherboard being a low enough profile passive components to fit within the clearance limits outlined in the ATX specs.

    – mnem
    Jan 16 at 14:52













  • Nit: It was Pentium 3 Coppermine that moved back to sockets, before Pentium 4.

    – Jonathan
    Jan 20 at 15:15














8












8








8







Early PC towers often used such a design, if only because they were basically desktop PCs on their side. Some systems even had a rotatable drive bay (a bay containing two full-height 5.25” emplacements is as high as it is wide).



There were some systems specifically designed along the lines you mention; Apple’s Quadra 950 and PowerMac 8100 spring to mind, and in less common systems, Digital’s Personal Workstations are nice specimens.



In the PC space though, the design wasn’t all that popular, at least when using standard components, because of motherboard constraints, and of target markets. Regarding the former, Baby AT systems did commonly put the hard drives and 3.5” floppy drive alongside the motherboard; but the number and size of expansion cards limited the ability to reduce the case’s size, and giving users access to memory slots etc. meant either having to develop specific “easy access” drive mounts, or leaving the case large enough to allow hands to fit without getting too badly torn to shreds. See this photo for a typical example of a baby AT clone. (Baby AT motherboards were really long too, so reducing the depth wasn’t possible anyway.) Regarding the latter, in the nineties most people wanted desktop systems, and towers were sold based on their enhanced expansion possibilities; reducing their size wasn’t part of the specification, on the contrary — the bigger the tower, the more serious the system, in many people’s minds (and on magazine covers).



ATX and related standards didn’t improve things much in terms of size reduction; the main consideration in the design was airflow. The same was true of BTX. The standards call for a fair amount of clearance above the motherboard, especially around the CPU — bear in mind that PCs in the early 2000s used slotted CPUs, not socketed; and while the Pentium 4 moved back to sockets it brought with it huge cooling requirements — so that combined with the expansion card requirements and easy access to memory means that designing a system with the motherboard behind everything is rather complex. (Not that it can’t be done, some small systems do exist, but they typically rely on specific equipment — low-profile CPU coolers, low-profile expansion cards if any, no 5.25” devices...)



The decline in popularity of 5.25” devices means that they are no longer a design constraint; but general purpose side-by-side designs still tend to follow the “humongous tower” approach. See Lian Li’s PC-011 for one example of a system with no 5.25” bays, or their PC-D600 and PC-08 for two-compartment designs with 5.25” bays (this type of case has been around for decades).



In summary, yes there were some towers with motherboards on a back plane behind everything else, but they came with constraints:




  • complicated access to devices on the motherboard;

  • limited airflow;

  • limited expansion capabilities (which ended up being rather ironic for a tower).






share|improve this answer















Early PC towers often used such a design, if only because they were basically desktop PCs on their side. Some systems even had a rotatable drive bay (a bay containing two full-height 5.25” emplacements is as high as it is wide).



There were some systems specifically designed along the lines you mention; Apple’s Quadra 950 and PowerMac 8100 spring to mind, and in less common systems, Digital’s Personal Workstations are nice specimens.



In the PC space though, the design wasn’t all that popular, at least when using standard components, because of motherboard constraints, and of target markets. Regarding the former, Baby AT systems did commonly put the hard drives and 3.5” floppy drive alongside the motherboard; but the number and size of expansion cards limited the ability to reduce the case’s size, and giving users access to memory slots etc. meant either having to develop specific “easy access” drive mounts, or leaving the case large enough to allow hands to fit without getting too badly torn to shreds. See this photo for a typical example of a baby AT clone. (Baby AT motherboards were really long too, so reducing the depth wasn’t possible anyway.) Regarding the latter, in the nineties most people wanted desktop systems, and towers were sold based on their enhanced expansion possibilities; reducing their size wasn’t part of the specification, on the contrary — the bigger the tower, the more serious the system, in many people’s minds (and on magazine covers).



ATX and related standards didn’t improve things much in terms of size reduction; the main consideration in the design was airflow. The same was true of BTX. The standards call for a fair amount of clearance above the motherboard, especially around the CPU — bear in mind that PCs in the early 2000s used slotted CPUs, not socketed; and while the Pentium 4 moved back to sockets it brought with it huge cooling requirements — so that combined with the expansion card requirements and easy access to memory means that designing a system with the motherboard behind everything is rather complex. (Not that it can’t be done, some small systems do exist, but they typically rely on specific equipment — low-profile CPU coolers, low-profile expansion cards if any, no 5.25” devices...)



The decline in popularity of 5.25” devices means that they are no longer a design constraint; but general purpose side-by-side designs still tend to follow the “humongous tower” approach. See Lian Li’s PC-011 for one example of a system with no 5.25” bays, or their PC-D600 and PC-08 for two-compartment designs with 5.25” bays (this type of case has been around for decades).



In summary, yes there were some towers with motherboards on a back plane behind everything else, but they came with constraints:




  • complicated access to devices on the motherboard;

  • limited airflow;

  • limited expansion capabilities (which ended up being rather ironic for a tower).







share|improve this answer














share|improve this answer



share|improve this answer








edited Jan 18 at 10:04

























answered Jan 16 at 13:32









Stephen KittStephen Kitt

37.5k8151165




37.5k8151165








  • 1





    Further, if you look at older full-size ATX boards (the ones that require the full footprint of a mid-tower, they do in fact only fit with part of the motherboard behind the drive cages. They just tend to be designed with everything in that corner of the motherboard being a low enough profile passive components to fit within the clearance limits outlined in the ATX specs.

    – mnem
    Jan 16 at 14:52













  • Nit: It was Pentium 3 Coppermine that moved back to sockets, before Pentium 4.

    – Jonathan
    Jan 20 at 15:15














  • 1





    Further, if you look at older full-size ATX boards (the ones that require the full footprint of a mid-tower, they do in fact only fit with part of the motherboard behind the drive cages. They just tend to be designed with everything in that corner of the motherboard being a low enough profile passive components to fit within the clearance limits outlined in the ATX specs.

    – mnem
    Jan 16 at 14:52













  • Nit: It was Pentium 3 Coppermine that moved back to sockets, before Pentium 4.

    – Jonathan
    Jan 20 at 15:15








1




1





Further, if you look at older full-size ATX boards (the ones that require the full footprint of a mid-tower, they do in fact only fit with part of the motherboard behind the drive cages. They just tend to be designed with everything in that corner of the motherboard being a low enough profile passive components to fit within the clearance limits outlined in the ATX specs.

– mnem
Jan 16 at 14:52







Further, if you look at older full-size ATX boards (the ones that require the full footprint of a mid-tower, they do in fact only fit with part of the motherboard behind the drive cages. They just tend to be designed with everything in that corner of the motherboard being a low enough profile passive components to fit within the clearance limits outlined in the ATX specs.

– mnem
Jan 16 at 14:52















Nit: It was Pentium 3 Coppermine that moved back to sockets, before Pentium 4.

– Jonathan
Jan 20 at 15:15





Nit: It was Pentium 3 Coppermine that moved back to sockets, before Pentium 4.

– Jonathan
Jan 20 at 15:15


















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